The Grand Duke's Official Birthday is observed in Luxembourg every June 23 and serves as the national day of the country. This celebration was established in 1947 when the then-reigning Grand Duchess Charlotte's actual birthday in January often faced inclement weather. In 1962, the date was fixed to June 23, coinciding with the name day of her son, Jean, the heir apparent. The festivities typically commence the evening before with a torchlight procession, followed by a day filled with events such as a military parade, a salute of 101 cannons, concerts, and a fireworks display. Official ceremonies are attended by the relatives of the current monarch, highlighting the significance of the day in Luxembourg's national identity. If June 23 falls on a Sunday, the celebrations are moved to June 24.